A fossilised skull trapped in amber that was recently identified as belonging to a tiny bird-like dinosaur might actually belong to a lizard.

Last month, palaeontologists analysed an ancient skull that had been preserved in amber and concluded that it probably came from a tiny, humming bird-like dinosaur that lived 99 million years ago. Now, a different group of researchers have reanalysed the fossil and believe that it actually came from a lizard.

Jing Lu at the Chinese Academy of Sciences and colleagues asked for copies of the CT scans from the …